Neat, we got the same computer Playaa (at least same as my old one that's sits noisily across the room). And you're right, it's by no means slow.
You might find this site useful, I have: OC Workbench for K7S5A
Some good info there, and the cheapobios that's available adds more flexibility to the board, and OC capabilities. I've not had problems with it, but, as always, use at your own risk. "<----it's a wink - Magruter
But I'm loving my Dell more these days, not just the faster processor and the better video card, but it makes no noise. I literally took it apart within hours of getting it b/c I thought something was wrong, a fan undone or something. It's just ultra quiet, a big plus in my book.